The Eagle Forged 4340 Crankshaft (Part Number: 434639006100) is a powerhouse component designed for serious performance enthusiasts. Crafted from high-quality SAE 4340 steel, this crankshaft stands out due to its exceptional strength and reliability, making it a smart choice for those pushing their engines to the limit. Whether you're building a street machine or a track-ready beast, this crankshaft has you covered.
This crankshaft undergoes a meticulous manufacturing process, including non-twist forging, multi-stage heat treatment, stress relieving, shot peening, and nitriding. Each journal is micropolished to a surface finish of 3 R.A. or better, which significantly reduces friction and enhances longevity. The crankshaft also features a .125" radius on all journals, requiring the use of chamfered bearings for optimal performance.
Many users have praised the Eagle 434639006100 for its outstanding performance. One customer noted, "After installing this crankshaft, my Camaro has never run smoother. The power delivery is incredible!" Another user mentioned, "I was impressed by the quality and finish of the product. Definitely a solid upgrade for my build!"
Currently, the specific fitment details for the Eagle Forged 4340 Crankshaft 434639006100 are not explicitly listed. It's recommended to consult with a professional or refer to your vehicle's specifications for compatibility.
Keep in mind that the crankshaft must be balanced to match your specific rods and pistons for optimal performance.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
2004-2007 Cadillac CTS |
CTS | 2004-2007 |
|
2010-2013 Chevrolet Camaro |
Camaro | 2010-2013 |
|
1997-2010 Chevrolet Corvette |
Corvette | 1997-2010 |
|
1998-2002 Pontiac Firebird |
Firebird | 1998-2002 |

EAGLE SPECIALTY PRODUCTS, aka EAGLE, has been at the forefront of developing top-quality engine components. The company officially started back in 1992 but has been developing their product for ten years prior. Since the company started, it has continuously produced some of the market's best engine components and is widely used by engine builders worldwide.
Imitated But Not DuplicatedDue to the company's success, its products have been imitated by other companies even up to the part numbers. But the similarity ends only up to how they look. EAGLE uses the finest materials and has invested in the most state-of-the-art manufacturing machinery for them to create a product that would be able to take any punishment it is subjected to. It is tested to be superior to other brands and considered the best upgrade for OEM counterparts.
No To ShortcutsThe company sets the benchmark on how valves should be properly made. Using their years of experience creating rods, they have already designed over 200 different rods and 180 crankshafts. The company does not allow cost to compromise its material used, manufacturing process, and quality test.
High-End QualityAll of Eagle's products are made up of high-quality materials. They use certified 4340 Chromoly steel. Using their own special heat treatment process, they are able to create a product that is much stronger compared to other competitors using the same raw material.
They manufacture their rods using a 2-piece forging process that allows the rod to be stronger. This process orients the "grain" of the metal to the direction of the stress. Eagle uses a state-of-the-art Sunnen Krossgrinding system that allows them to create perfect cuts and bore consistently.
Purchase EAGLE rods at Vivid RacingIf you want to upgrade your engine rods to something stronger and more reliable, then EAGLE is the brand for you. With their proven design and formula for creating rods, they have been sought after by top racing teams and engine builders. If they trust Eagle, so can you. Visit Vivid Racing and check out the list of parts specifically for your needs.